fix test broken due to inversion of event_category<->competition association
fix test broken due to inversion of event_category<->competition association

scotthue/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration,scotthue/unicycling-registration,scotthue/unicycling-registration